. >> the bombing comes one week after former secretary of state, hillary clinton, faced intense questioning over the obama administration's handling of security before its statements after september's attack on the u.s. consulate in libya. >> because of a protest or guys out for a walk and they decide to kill some americans? what difference, at this point, does it make? >> analysts say in the wake of the ben ghazi attacks, there is greater focus on what the u.s. can and can't do in protecting its diplomats. >> if someone wants to take their life to take yours, there's very little that can be done. >> lew coffee is a security expert at the heritage foundation. he says keeping the bomber from entering the embassy play add key role in reducing the casualties. >> he exploded himself outside. >> what remains to be seen is friday's attack was an isolated to send a message to the start of a new wave of violence in u.s. facilities in turkey. >> this is not, however, the first time u.s. diplomatic facilities in turkey have been targeted previously by terrorists back in 2008, the attack blamed an aff